function linkwindow()
{
myWindow='Linkwindow';
myWindow.focus();
}

function gohome()
{
	window.location="index.php"
}

function change_site() {
var site = document.myform.mypopup.selectedIndex;
window.location.href = document.myform.mypopup.options[site].value;
}

function change_site2() {
var site2 = document.myform2.mypopup2.selectedIndex;
window.location.href = document.myform2.mypopup2.options[site2].value;
}

function validate()
{
x=document.formA
naam=x.naam.value
email=x.email.value
var verzendingOK="True"
if (naam=="")
{
alert("Naam is niet gevuld")
verzendingOK="False"
}
if (verzendingOK=="False")
   {
   return false
   }
}


function JumpToNextInputField(elem)
{
	parenttable=elem.parentNode.parentNode.parentNode;
	clickedrowindex=elem.parentNode.parentNode.rowIndex;
	adjacentrowindex= clickedrowindex+1;
	adjacentrow= parenttable.getElementsByTagName('tr')[adjacentrowindex];
	adjacentrow.childNodes[0].childNodes[0].focus()
}

function JumpToPreviousInputField(elem)
{
	parentrow=elem.parentNode.parentNode
	opmerking= parentrow.getElementById('Opmerking')
	opmerking.focus()
}

function RowUp(elem)
{
	EnableSave()
	clickedrowindex=elem.parentNode.parentNode.rowIndex;
	if(clickedrowindex == 1)
	{
		alert('Deze regel kan niet verder opgeschoven worden');
		return false;
	}
	parenttable=elem.parentNode.parentNode.parentNode;
	clickedrow=parenttable.getElementsByTagName('tr')[clickedrowindex];
	adjacentrowindex= clickedrowindex-1;
	adjacentrow= parenttable.getElementsByTagName('tr')[adjacentrowindex];
	clickedrow_clone=clickedrow.cloneNode(true);
	adjacentrow_clone=adjacentrow.cloneNode(true);
	adjacentrow=parenttable.replaceChild(clickedrow_clone,adjacentrow);
	clickedrow=parenttable.replaceChild(adjacentrow_clone,clickedrow);
}

function RowDown(elem)
{
	EnableSave()
	clickedrowindex=elem.parentNode.parentNode.rowIndex;
	maxrindex= (elem.parentNode.parentNode.parentNode.getElementsByTagName('tr').length)-2;
	if(clickedrowindex ==maxrindex)
	{
		alert('Deze regel kan niet verder opgeschoven worden');
		return false;
	}
	parenttable=elem.parentNode.parentNode.parentNode;
	clickedrow=parenttable.getElementsByTagName('tr')[clickedrowindex];
	adjacentrowindex= clickedrowindex+1;
	adjacentrow= parenttable.getElementsByTagName('tr')[adjacentrowindex];
	clickedrow_clone=clickedrow.cloneNode(true);
	adjacentrow_clone=adjacentrow.cloneNode(true);
	adjacentrow=parenttable.replaceChild(clickedrow_clone,adjacentrow);
	clickedrow=parenttable.replaceChild(adjacentrow_clone,clickedrow);
}

function delRow(r)
{
EnableSave()
var i=r.parentNode.parentNode.rowIndex;
r.parentNode.parentNode.parentNode.deleteRow(i);
}

function EnableSave()
  {
	  document.getElementById("SaveButton").disabled=false
  	  document.getElementById("BackButton").disabled=false
	  document.getElementById("SaveButton").value='Sla wijzigingen op'
  }

function insIntermediateRow(nbrofattr,pos)
{
	EnableSave()
	var p=pos.parentNode.parentNode.rowIndex;
	var rand_no = Math.random();
	rand_no = rand_no * 100000;
	rand_no = Math.ceil(rand_no);
	x=pos.parentNode.parentNode.parentNode.insertRow(p);
	size=95/(nbrofattr+1);
	for (j=0;j<nbrofattr;j++)  
	{
		attrnbr = j+1;
		z=x.insertCell(j);
		z.innerHTML="<input class='line' type='text' onChange='EnableSave()' size='" + size + "' maxlength='255' name='inpattr" + attrnbr + "_" + rand_no + "' />";
	}
	z=x.insertCell(j);
	z.innerHTML="<input class='line' type='text' onChange='EnableSave()' size='" + size + "' maxlength='255' name='inpattr6" + "_" + rand_no + "' />";
	
	z=x.insertCell(j+1);
	z.innerHTML="<input class='plus' type='button' onclick='insIntermediateRow(" + nbrofattr  + ",this)' onFocus='JumpToNextInputField(this)'/><input type='button' class='minus' onclick='delRow(this)' onFocus='JumpToNextInputField(this)' /><input type='button' class='up' onclick='RowUp(this)' onFocus='JumpToNextInputField(this)'/><input type='button' class='down' onclick='RowDown(this)' onFocus='JumpToNextInputField(this)'/><input type='button' class='copy' onclick='CopyItem(this)' />";
}

function CopyItem(c)
  {
	  document.getElementById("CopySelect").disabled=false
  	  document.getElementById("CopyButton").disabled=false
	  alert("Met deze knop kun je binnenkort regels naar je eigen lijstje kopieren");
  }